Manifold lock



Patented May l2, 1925.

UNITED, STATES 1,537,4u PATENT 'oF-Fl.el-:`

DANIEL R. cox AND DAVIDA". KINNIE, or PASADENA, CALIFORNIA.

y MANIFOLD Loox..

j Applicatio'led'April 24, 1924.. Serial No. 708,654,

T all whom it' may concern: Be it known that we,lDA1\ra'L R. .Cox and DAVIDv A.`KINN1E, citizens of the United States, residing at Pasadena, in the county 5 ofLos-Angeles and State of California, have invented new and useful vvImprovements in AManifold Locks, of which the following is a specification.

This invention 1sv a'imanifold `lock,and` consists of the novel features herein shown,

described and claimed. -I

An object is to place a valve in the gas line from a carburetor to'a manifold andextend the stem of the valve to the instrument board and place a lock in the instrument l board for operating the valve.

" "fOther objects and advantages will appear from the drawings and specification.

The view illustrates 'thel invention and shows the construction vpartly in elevation and partlyin section, the carburetor and manifold being broken away to 4economize space.

The details ofthe manifold lock shown the drawing are as follows:

The intake manifold 1 has a flange coupling member 2, which ordinarily lits agamst the flange coupling member 3 ofthe carbure-l` tord.'l

In applying our invention the valve casing 5 has a flange coupling member 6 fitting the p coupling member' 2 and aliange coupling member 7 fitting the coupling member 3, so that-when the bolts 8 areapplied the valve casing 5- is rigidly mounted in the gas line and has a passage 9 through which the gas passes from the carburetor 4 tothe intake manifold 1. The valve casing 5 has ,a valve .seat lObored from the upper side of the 'cas` ing crosswise of the passage 9. The valve member 11 ts'rotatave'lyin the valve seat 10 and has a large transverse bore 12 so that whenvthe' bore A12 is' in line with the passage 9 the flow of gas is not interrupted 'and so that when the valve member 11 is turned to bring the bore 12 crosswse of the passage 9, the gas line is effectively closed.

Port 13 leads downwardly from the top of the valve member 11 to thebore 12. An

' extends upwardly,the passage through the housing being larger than the valve member 11, so that the valve member 11 is inserted downwardly through thehousing 14 Iadmit air.-4

interiorally.. screw threaded housingl 14 is formed integral with the valve casing jalrd into the seat l10. A stem 15 extends upwardly from the valve member 11', a reducer 16 is screwed into thel housing 14, and a cap (17 is screwed upon the smallend of. the rey A flexibleA shaft construction :18 shown as a coil spring is "connected to the/'upper end df the stem 15, va flexible shell 19" is connectedto the -reducer 17, and the flexible shaft 18 extends through the shell l19. The re-'. ducer 16 may be welded, soldered or brazed to the housing 14, as indicated at 20, and in a like -manner the cap 17 may be welded, soldered-or brazed to the reducer 16, as indif cated at 21, /so that the parts cannot be easily disconnected.

A lock casing 22 is mounted through the instrument board 23and dash 24;, and the upper end of the flexible shellv19 is connected lto the casing 22 by welding, brazing 75 or soldering, 25.. The key lock 26 is -mounted in the casing 22. A stem 27 extends from the rotating cylinder of the key lock and is attached to the flexible shaft 18, sothat when the key lock 26 is properly operated and the 'key removed, the valve member 11 is crosswise of the gas passage and the intakeV manifold 1 is locked against receiving gas to operate the en 'ne, and so that when the key 28 is inserte into the lock-and properly operated the valve member 11 is turned to bring lthe bore 12 into the gas line and the manifold is unlocked and the engine may be 0Perated.- A 7 In case la thief or other unauthorized person wasto break the shell 19 and rotate the valve member 11 to open the gas line, the port 13 would ,furnish a surplus of air and prevent the engine lfrom being 'successfully operated. 1 A Normally the flexible-shaft construction and key lock construction are closed to air sojthat the ports 13 serve no purpose until' the flexible shaft4 construction is broken to Thus, We have .produced a manifold lock comprising 'a valve adapted to be introduced ,between a carburetorj and an intake manifold and adapted to -open andl close the gasl passage, and anlenclosed flexible shaft con- 105 struction extending from the valve and adapted to be connectedto a key lock construction which may be mounted` in any convenient position as upon a dash or instrument board. 4 110 Various changes may be made without departing from the spiritgof our invention as` adapted to be introduced between a carburetor and an intake manifold and adapted to open and close the gas passage, a gas tight tubular shell leading from the Valve, 4a shaft leading through the tubular shell to turn the valveyand a port from the Valve to the tubular shell. I

2. A manifold lock comprising a valve adapted to be introduced between a carburetor and an intake manifold and adapted to open and close the gas passage, a gas tight tubular shell leading from the valve, a shaft leading through the tubular shell to turn.

the valve, a lock connected to the shaft, and a port leading through thevalve from the gas passage to the tubular shell.

3. A manifold lock comprising a valve adapted to be introduced between a carburetor and an intake manifold and adapted to open and close the gas passage, and an enclosed flexible shaft construction extending from the Valve and adapted to be connected to a key lock construction which may Abe mounted in any convenient position as upon a dash or instrument board, the valve lock construction at the outer end of the liexible shaft construction, there being ports which will be opened if the flexible shaft construction is broken.

5. The combination with an intake manifold, a carburetor and an instrument board or dash, of a valve construction adapted to be inserted between the carburetor and the intake manifold, a flexible shaftconstruction leading from the valve construction and ay key lock construction mounted through the instrument boardor dash and connected to the flexible shaft construction, there beting ports through the valve construction which are normally maintained closed, and which are open when the flexible shaft construction is broken.

In testimony whereof we have signed our names to this specification.

DANIEL R. COX. DAVID A. KINNIE. 

